Di-/piezo-/ferro-electric and magnetic properties of Yttrium doped 0.49BiFeO3-0.20Pb(Mg1/3Nb2/3)O3-0.31PbTiO3 ternary ceramic at MPB

• Published in: Journal of materials science. Materials in electronics 2024-07, Vol.35 (21), p.1448, Article 1448
• Main Authors: Kumar, Ajay, Hussain, Abid, Joseph, Abhilash J., Goel, Sahil, Singh, Naorem Santakrus, Singh, Udaibir
• Format: Article
• Language: English
• Subjects: Ceramics; Characterization and Evaluation of Materials; Chemical synthesis; Chemistry and Materials Science; Dielectric loss; Dielectric properties; Dielectric strength; Electric properties; Ferroelectric materials; Ferroelectricity; Ferromagnetism; Hysteresis loops; Investigations; Lattice parameters; Magnetic properties; Materials Science; Optical and Electronic Materials; Perovskites; Physics; Piezoelectricity; Polyvinyl alcohol; Room temperature; Sintering; Yttrium
• ISSN: 0957-4522; 1573-482X
• DOI: 10.1007/s10854-024-13206-y

Yttrium (1 mol %) -doped 0.49BiFeO 3 -0.20Pb(Mg 1/3 Nb 2/3 )O 3 -0.31PbTiO 3 ceramic at the morphotropic phase boundary was synthesized by a solid-state reaction via columbite precursor technique. X-ray diffraction (XRD) and FESEM analysis confirmed a perovskite phase in the P 1 m 1 space group with a homogeneous microstructure sintered at 920 °C. Rietveld refinement yield lattice parameters a  = 3.95984 Å, b  = 3.93828 Å, c  = 4.04466 Å, α  = 90.000°, β  = 89.970°, γ  = 90.000°. Studies of dielectric permittivity and ferroelectric hysteresis at room temperature shows Y doping impact, exhibiting low dielectric loss and a saturated hysteresis loop. The synthesized sample remains fatigue-free over 10 4 cycles, with a high value of converse piezoelectric coefficient of d 33 * ̴ 723 pm/V. Weak ferromagnetism is observed in the magnetic hysteresis loop (M-H) at room temperature, suggesting potential applications in ferroelectric-based technologies.